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(No Model. 2 Shets-Sheet 2.

W. E. PEIRGE.

; -BLEGTRIQTIME LOGK.

No; 287,775. Patentd Oct. 30, 1883.

ATTORNEYS.

UNITED STATES PATENT OFFICE.

WILLIAM EDGAR PEIROE, OF NEWARK, JERSEY.

, ELECTRIC TIME-LOCK. I

To all whom it may concern.-

Be it known that I, WILLIAM EDGAR PEIRCE, of Newark, in the county ofEssex and State of New Jersey, have invented a new and usefulImprovement in Electric Time-Locks, of which the following is a full,clear, and exact description.

' Reference is to be had to the accompanying drawings, forming a part ofthis specification, in which similar letters of reference indicatecorresponding parts in all the figures.

Figure 1, Sheet 1, is an elevation of my improvement shown as applied toa safe, the safe being represented open and with part broken away. Fig.2, Sheet 1, is a sectional elevation taken through the line 3 3 Fig. 1.V Fig. 3, Sheet 1, is a plan view of a part of the catchlever and itsmagnet. Fig. 4, .Sheet 2, is a front elevation of one of the clocks,parts being broken away. Fig. 5, Sheet 2, is a plan view, partly insection, of the mechanism for closing the circuit in the clock at'theproper time. Fig. 6, Sheet 2, is a sectional elevation of a part of thesame, taken through the line 00 m, Fig. 5, showing the circuit open.Fig. 7, Sheet 2, is the same section as Fig. 5, but showing the circuitclosed.

The object of this invention is to promote security and reliability inthe use of time-l0 cks.

The invention consists in an electric timelock constructed with abattery, the circuitwires of which have two breaks, one closedautomatically by atime mechanism and the other closed by hand, the saidcircuit-wires being connected with an electro-magnet having its armatureconnected with a catch-lever engaging with the locking-bolt, so that thesaid locking-bolt will be released when both breaks in the circuit areclosed, as will be hereinafter fully described.

A represents a safe, and B represents the safe-door.

Within the safe Ais placed a galvanic bat tery, O, the conduction-wiresD E of which are connected with insulated contact-points F G,

secured in the rabbet of the safe-doorway, into 1 Application filedDecember 14, 1882. Renewed October 4. 1883. (No model.)

SPECIFICATION formingpart of Letters Patent No. 287,775, dated October30, 1883.

F G, and with which the continuations D E of the wires D E areconnected, so that when the safe-door is closed the parts D E of thecircuit-wires within the safe A will be in electric connection with theparts D E of the said wires attached to the safedoor B.

From the contact-point H the circuit-wire D passes to the clock Jsecured to the inner side of the safe-door B, and is connected with aninsulated conductingbar, K, attached to the case of the clock, andprovided with a point, L, to come in contact with a corresponding point,M, upon an insulated conductingbar, N, secured to the clock-case, andwith which is connected the continuation D of the will be in or passthrough the angle of the.

said spring, so that the said spring will rest against the inner side ofthe said gear-wheel .or the inner endof its hub, and when left free willforce the said-wheel outward.

The teeth of the gear-wheel P mesh into the teeth of the large gearwheel Q,.with which is rigidly connected a small gear-wheel, R. Theteeth of the gear-wheel B mesh into the teeth of the hour-wheel S of theclock-work.

The hub of the gear-wheel P is made long,

and upon its outer end is formed, or to it is attached, a'disk, T,having an annular flange around its rim which rests'and slides againstan index, U, attached to the post P of the gear-wheel P. In the flangeof the disk T is allow the gear-wheel'P to move outward.

The index U points to the division-marks of a dial, WV, formed upon orattached to the main dial of the clock J, and which represents hours andfractions of an hour. To the disk T, in a radial line with the recess V,is attached an index, X, which points to the dial W, so as to show atwhat point the recess V stands, so that the index U can be so set thatthe recess 'V will come opposite to the said index U in any desirednumber of hours.

The

formed a recess,V, to recelve the lndexU and index U is held in placeand against the flange of the disk T by a spring, Y, connected with thepost P and with the frame of the clockwork S.

The gear-wheel P may be constructed to make a revolution in one, two,three, or any other desired number of days, and the dial XV has as manyhour division-marks as the gearwheel P requires hours to make arevolution.

The gear-wheel Q is made so long that the movements of the gear-wheel Pupon its post P will not throw its teeth out of gear with the teeth ofthe said gear-wheel Q.

The post of the gear-wheel Q slides longitudinally in its bearings, sothat it can be pushed inward, to throw the said gear-wheel out of gearwith the gear-wheel S, to allow the gear-wheel P to be turned withoutturning the clock-work, to bring the recess -V into such a position thatit will reach the index U in any desired number of hours at whateverhour of the dial V the said index may be set. V

The wheels Q R are held outward by a spring, Z, connected with theirpost and with the frame of the clock-work, and their outward movement islimited by a collar or shoulder, a, attached to or formed upon the postof the said wheels. The post of the wheels Q R is provided with a key orknob, b, for convenience in pushing the said wheels inward, to throwthem out of gear with the clock-work S.

To the post of the gear-wheelP is attached a small. gear-wheel, c, theteeth of which mesh into the teeth of the large gear-wheel d. The postof the gear-wheel d revolves and slides longitudinally in bearings inthe frame of the clock-work, and is provided with a key or knob, e, forconvenience in turning it to adjust the recess V of the'flanged disk Twhen the gear-wheel P is out of connection with the clock-work. Vlhllthis construction, when the hour at which the index U has been setarrives the recess V comes opposite the index U and allows the spring 0to force the gearwhecl P outward. This outward movement of the spring 0carries the free end of the said spring out from between the ends of thebars K N, and allows the points L M to come in contact and close thecircuit at that point.

The recess V is made with inclined sides, so that as the wheel Pcontinues to revolve the flange of the disk T, pressing against theindex U, will force the wheel P and the spring 0 back to their placesand force the free end of the said spring inward above the bar K,leaving the points LM in contact until the bar K is raised by operatingthe button 0, hereinafter described.

The free end of the spring 0 is made of hard rubber, or other suitablenon-conducting material, so that it cannot act as a conductor to theelectric current, and is beveled upon its side next the rigid bar N, sothat when the gear-wheel P and spring 0 are forced back by the action onthe index U of the flange of the disk T the said free end of the spring0 can pass above the said bar K, and the bar K can be raised to the topof the spring 0 by the but ton o, hereinafter described.

One, two, or three clocks are attached to the safe-door B, and areconnected with the same circuit-wire, so that should either of the saidclocks stop or get out of order the other or others will close thecircuit at the proper time.

The wire I) passes from the bar N to the helix of the magnet f, andpasses thence to the helix of the magnet g, the other end of thehelix-wire being connected with a contactpoint, p. The armature h of themagnet f is insulated from and connected with the end of s the lever 2which is pivoted at its middle part to the safe-door B, and has a catchor shoulder formed upon its forward end, to engage with a shoulder, j,of the bolt is, so as to hold the said bolt from being thrown back untilthe electric circuit is closed, and the engaging end of the catch-leveri is withdrawn from the bolt 7; by the attraction of the armature h bythe magnet f. lVith this construction there is no strain upon the clockin drawing the bolt.

The armature Z of the magnet g is connected with a spring-bar, m, thelower end of which is attached to the safe-door B by a screw or othersuitable means, and which is so formed as, when left free, to hold thearmature Z away from the magnet g and the conductor q away from thecontact points 19 r. The contactpoint r is connected with the part E, ofthe circuit'wire, so that the break in the circuit can be closed bybringing the conductor (1 in contact with the points 12 r. The conductorq is connected with the armature Z, and is insulated from the saidarmature by rubber s or other suitable means.

The upper end of the spring-bar m is forked, to receive the bit of a keyor knob, a, which passes through the safe-door B. With thisconstruction, when the circuit is closed automatically at the clock thekey or knob a can be turned at any time to bring the conductor q intocontact with the points 10 r and close the circuit at that point, whenthe catch-lever i will be withdrawn from the bolt 7c and the said boltcan be drawn back by the ordinary means.

The bolt is can be shot and drawn back by a knob, a key, or othersuitable means, and can have a combination-lock, or other lock,connected with it, if desired.

Vheu the conductor q is brought into 0011- tact with the points 12 r,the armature Z is in contact with the poles of the electro-magnet 9, sothat the said conductor and armature will be held in place by electricalattraction until the circuit is broken by opening the safedoor. Thisretention of the conductor q and armature Z in place by electricalattraction allows the operator to release the key a and use his hands towithdraw the bolt k or unlock the lock connected with the said bolt whensuch a lock is used. WVith this construction there is great economy inthe battery-power,

287,775 E y 1 s as the current is in use only while withdrawing the boltand opening the safe-door. 0 is a button placed beneath the bar K, and

attached to a knob-spindle passing through.

the clock-face. The button a should be a nonconductor, so that whenbrought into contact .with the bars K N it will not close the circuit.

armature connected with a catch-lever engaging with the locking-bolt, sothat the said locking-bolt will be released when both breaks in thecircuit are closed, as set forth.

2. In an electrictime-lock, the combination, with the circuit-wires, D DD, of the battery O, and the clock-work, of the insulatedconducting-bars K N, having contact-points L M, the spring 0, thegear-wheels R Q P, the flanged disk '1, connected with the gearwheel P,and having recess V, and the adjustable indeX U, substantially as hereinshown and described, whereby the break in the circuit-wire will beclosed automatically at a fixed time, as set forth.

WILLIAM 'Witnesses: J NO. 0. AvERILL, HOMER E. FOOTE. f

EDGAR PE ncE.

